Solar heating apparatus.



6N9. 696,326. Patented Mar. 25, I902.

M. DE LA GARZA. SOLAR HEATING APPARATUS.

(Application filed Apr. 1, 1901.

(No mm.) 3 sheets-sheet l.

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Patented Marl. 25, I902.

m. ma LA GABZA. SOLARHEATING APPARATUS.

(Application filed Apr. 1, 1901.)

3 Sheets-Sheet 2.

(No Model.)

WITNESSES A TTORNE Y S N0. 696,326. Patented Mar. 25, I902.

m. DE LA GARZA.

SOLAR HEATING APPARATUS;

6 (Application filed Apr. 1, 1901.) (No Model.) 3 SheetsSheet 3.

A TTOHNEYS UNITED STATES PATENT GFFICE.

MARoos DE LA GARZA, on CHIHUAHUAMEXIOO.

SOLAR HEATING APPARATUS.

SPECIFICATION forming part of Letters PatentNo. 696,326, dated March 25,1902. Application filed April 1, 1901. Serial No. 53,827. (No model.)

To avZZ whom it may concern.-

Be it known that I, MARCOS DE LA GARZA, a citizen of the Republic ofMexico, and a resident of Chihuahua, Mexico, have invented a new andImproved Solar Heating Apparatus, of which the following is afull,clear, and exact description. 1

My invention relates to devices enabling the rays of the sun to beutilized for heating purposes, saving the cost of fuel, and obtaining ahigh degree of heat with cleanliness and without injurious action on thearticles which are being cooked, whilethe cost of the apparatus does notexceed that of an ordinary stove.

The invention will be fully described hereinafter and the features ofnovelty pointed out in the appended claims. 1

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the figures.

Figure 1 is a perspective View of the entire apparatus. Fig. 2 is a sideelevation thereof. Fig. 3 isa detail longitudinal sectional elevation ofone of the cooking utensils and its appurtenances. Fig. at is across-section on line 4. 4 of Fig. 3. Figs. 5 and 6 are sectionalelevations of two other forms of cooking utensils. Fig. 7 is a plan of areceptacle forheating metals, and Fig. 8 is a perspective view of acasing for-heating sad-irons;

The apparatus comprises a frame having a' longitudinal bottom barA, theends oflwhich form axles for wheels A, horizontal cross.- bars B, withwheels 13 journaled at one end of each of them, a short longitudinal bar0, connecting the bars B adjacent to the wheels B, uprights D, risingfrom the'bottom bars,

top bars E, connecting the upper ends of the uprights, and braces F,connected with the uprights and with the bottom bars.

To two of the uprights D is pivoted a swinging frame G, having a head Gat its pivoted end and parallel bars G2 connecting said head with theopposite end bar G of the swinging frame. To the said end bar aresecured cords or wires H, passing over pulleys H, journaled in two ofthe uprights D, said cords then passing to boxes I, surrounding awindingshaft I, to which the ends of the cords are fastened. I is acrank for turning the shaft, and 1 represents set-screws adapted toengage the shaft to lock the same.

In the head G are set lenses J, biconvex, as shown, or of any othersuitable shape. front of the lenses are arranged hinged hoods or caps J,provided with hooks J to hold the hoods shut. Rearwardly from saidlenses there project tapering tubes K, blackened on the inside topreventreflections. These tubes at their rear ends fit into sockets Lupon the casings L, each provided with a handled lid L and Withlugs Lresting on the bars G Each casing is provided with a partition L havingan opening and a funnel L projecting forwardly therefrom in axialalinement with the socket L and lens-tube K. On the side of the casingLis an opening L, adapted to be closed by a slide L Fig. 2, for allowingthe attendant to ascertain if the suns rays fall in the desireddirection. Preferably a mirror] is provided to enable the attendant toView the inside of the apparatus from the rear. An apertured shield Lmay be located in the rear of the funnel or cone L In the chamber L atthe rear of the partition L extends a transverse shaft formed of outersec tions M, adapted to engage alining sockets M, projecting from thecooking vessel N.

One of the shaft-sections M has a crank M for turning the shaft and thevessel; but such cranks are provided only on the first and'la'streceptacles or casings L of the series, and the adjacent shaft-sectionsM of the several casings are connected with each other, so that all thevessels N may be adjusted together. Through the rear wall of the casingLpasses a shaft 0, provided with a crank O and adapted to engage thevessel N above the sockets M. At the'bottom is located a shaft P, havinga crank P and a projection 1? extending into the chamber L. A set-screw1 serves to lock the shaft P, and set-screws M lock the shaft M afteradjustment. Through the bottom of the casing projects a screw Q, adaptedto engage thebottom of the vessel N to hold the same firmly in positionafter adjustment.

The cooking vessel N (shown in Figs. 3, at, and 5) has an inner wall N,with aninclined bottom N and an outer wall N spaced from the inner wallto form a jacket, which is filled with ashes N or with some other badconductor of heat. The open top of the vessel is adapted to be closed'bya lid N the interior of which has a filling of ashes N At the bottom, onthat side which normally faces the funnel L. the outer wall or shellNhas an'opening N through which the suns rays may pass to the inner wallN. The casing L is preferably provided with a few apertures to allowsteam and vapors to escape.

In Fig. 6 the vessel It has an inner wall R, an outer wall R a tube Rfor the admission of the heating-rays, a lid R, containing a filling ofashes R a like filling R between the inner wall R and outer wall R andfeet R \Vithin the inner wall R is located a pan R hinged at its forwardend R and provided with a bottom projection R extendingthrough anopening R This vessel is adapted for use as a bread-pan.

The vessel shown in Fig. 7 has a casing S with sliding doors S and asockets to permit of introducing the metal or other substance to beheated, a funnel S through which the suns rays enter, lugs S to rest onthe lateral bars G and air inlet and outlet tubes S S one of which isconnected with a fan to force air through the vessel, so that there willbe an ample supply of oxygen to facilitate the chemical reaction.

Finally, in Fig. 8 I have shown a casing or receptacle T of proper shapefor holding a sad-iron and provided with a cover T and with an apertureT through which the heatrays may fall upon the sad-iron.

In each case, the proper vessels having been secured to the swingingframe G, the said frame and the vessels therein are so adjusted that thesuns rays concentrated by the lenses J will fall upon the inner wall ofthe vessel. The opening L allows the course of the light to be watched,so that proper adjustment may be made. The frame G may be inclined moreI or less by turning the crank 1 while the vessel, as N, may be adjustedby means of the cranks M ,O', and P and then locked by the screw Q. Ifit is not desired to use all the lenses, the light may be excluded fromsome of them by means of the hoods J. The mounting of the main frame onthe wheels A B allows the frame to be readily turned so as to keep thelenses J toward the sun. The heat of the suns rays will be concentratedby the lenses upon the vessel and the material to be heated, and loss ofheat will be prevented by the use of the protecting lenstubes K and ofthe non-conducting filling N N R R Thus water may be boiled in a veryshort time, vegetables may be cooked, bread baked, solder ormetalsmelted. In fact, any operation which requires heat maybesafelyandexpeditiouslyconducted. When used for culinary purposes, myinvention has the important advantages of cleanliness, owing to theabsence of soot-forming fuel. Further, the flavor of the food is notimpaired, and there is no danger of contaminasaid main frame to turnabout a horizontal" axis, a light-concentrating device carried by saidswinging frame, and a heating vessel carried by said frame at the focusof said light-concentrating device, and mounted to swing about ahorizontal axis relatively to the swinging frame.

2. A solar heating apparatus, comprlsin g a main frame capable of beingturned about a vertical axis, a swinging frame supported on said mainframe to turn about a horizontal axis, a light-concentrating devicecarried by said swinging frame, a heating vessel carried by saidswinging frame at the focus of said light-concentrating device, andmounted to swing about a horizontal axis relatively to the swingingframe, and adjusting devices connecting said swinging frame and theheating vessel.

3. A solar heating apparatus, comprising a main frame, a pivoted framecarried thereby, a lens at the pivoted end of the said frame, a pivotedheating vessel also carried by the swinging frame at the focus of thelens, and a lens-tube extending from-the lens to the said heatingvessel.

l. A solar heating apparatus, comprising a main frame, a swinging framecarried thereby, a light-concentrating device on the swinging frame, acasing carried by the swinging frame and provided with an opening facingtoward said light-concentratin g device, and a heating vessel mounted insaid casing to swing about a horizontal axis.

5. A solar heating apparatus, comprising a main frame, a swinging framecarried thereby, a lens at the fulcrum end of the said frame, a casingalso carried by said frame, an adj ustable heating vessel in the casing,and a lenstube extending from the lens to the casing.

6. A solar heating apparatus, comprising a main frame, a swinging framecarried thereby, a lens on the swinging frame, a casing also carried bysaid frame, and provided with a partition having an opening and afunnelshaped tube projecting therefrom toward the lens, and a heatingvessel located in said casing on the other side of the partition.

7. A solar heating apparatus, comprising a main frame, a swinging framecarried there by, a lens on the swinging frame, a casing also carried bysaid frame, and provided with a partition having an opening and afunnelshaped tube projecting therefrom toward the lens, a heating vessellocated in said casing on the other side of the partition, and alenstube extending from the lens to the casing.

8. In a solar heating apparatus, the combination with a casing, and asectional shaft mounted therein, one section being provided with acrank, of a heating vessel within the casing and provided with aliningsockets to receive the shaft-sections,and means for looking the vesselin position.

9. In a solar heating apparatus, the combination of a casing providedwith an opening I5 and with a partition dividing it into twocompartments said partition havingan opening from which a funnelprojects,and a heating vessel adj ustably supported in one compartmentof the casing and provided with an opening in its lower portion.

10. A solar heating apparatus, comprising a'main frame, a swinging framemounted in the main frame, a lens carried by the swinging frame, ajtubeextending from the lens, a casing also carried by the swinging frame andprovided with anopening receiving the lenstube, and with a partitiondividing the cas-- in g into two compartments,said partition having anopening in alinement with the opening of the casing and a funnel aroundsaid opening, anda heating vessel adjustably mounted in one compartmentof the casing and provided with an opening in itslower.

portion opposite the opening in the partition.

11. In a solar heating apparatus, the combination with a support, and apluralityof casings carried by the support and arranged side by side, ofa'heating vessel in each casing and provided with alining sockets, and asectional shaft carriediby each casing and en-'

